Flanged metal pipe.



No 849,883 PATENTED APR. 9, 1997.

L. H: BRINKMAN.

FLANGE METAL PIPE.

APPLIGILTION FILED JULY 20, 1905.

2 SHEETS-SKEET l.

lllllllllllllllll 5 r 1 Wvknesses w Inu encor H D.7*G&M I Louis HMBM, kmcm No. 849,888. PATENTED APR. 9, 1907. L. H. BRINKMAN. FLANGED METAL PI APPLIOATION ITLISD JULYZG, 1905.

2 SHEETS-$111231 2.

\A/i cnessesa i To all whom it may concern:

LOUIS H'. BEINKM N', or HARTFORD LOCK COIL PIPE COMPANY, OF "ORPORATION OF CONNECTICUT.

FLANGED METAL PIPh.

I Specification of Letters Patent.

Patented Apri1'9, 1907.

application filed July 20, 1905. Serial No. 270,500.

Be itknown that I, LOUIS H. BRINKMAN, a citizen of the United States, residin -at Hartford,'in the county of Hartford and State of Connecticut, have invented a new and useful Improvement in- Flanged Metal Pipes, of which the following is a specification, accompanied by drawings, forming a part of the same, in which'- Figure 1 represents two coupled sections of me having opposing flanged ends ex m b yingmy invention. Fig. 2 is a side view ofa ptiipe-flanging machine by which my improve -process of ipe-fiangmg 1s accomplished; Figs. 3 and -4 are detailed views of the ilanging mechanism, denoting different steps in the-process. Fig. 5 isa detached View of the roller-carrying face-plate shown in sectional view online 5 5, Fi 2. big. 6 is a detached view of, the pipe-c am -)ing device, and Fig. 7 represents a flange I, end of the pipe shown in section.

Similar reference letters and figures refer to similar parts in the different views.

My present invention relates to an improved form of flan e formed upon the ends of metal pipes whic are to be coupled together and to the method of making the same.

Referring to the accompanying drawings,

12 denote two sections 0 pipe having their opposing ends flanged and coupled to ether by coupling-Collars 3 3 and coup ing-bolts 4 4.

My improved ipe-flange is made by turning over the end 0 21. pi e ,bya' sharp bend at 5 5,

' for1ning an externa flange atlan oblique angle to the axis ofithe pipe and returmng the flange upon itself by an inward bend at 6 with the return portion of the flange lying in a plane at right angles to the axis of the pipe, with an incloscd annular spaeeS' at theouter edge of the flange and' preferably with a restricted opening 9 between the bendS-arid'the inturn member of the flange, thereby forming a double flange-with the inturn members 7 on the adjacent ends of the )ipe brought into Contact and drawn toget or by means of con ling Collars 3 and bolts' t; as represented in Sig. 1, said coupling-collars 3 being provided ,With o posinggrooved faces adapted to receive an closely iit the outer surfaces of the flanges.

As thei'opposing surfaces of the inturnmembers? are brou ht into planes at right angles to the axes of the r respective pi es,

, CONNECTICUT, ASSIGNOR TO --wn T-'- -WEST HARTFORD, CONNECTICUT, A

they form closely-contacting surfaces w env coupled together, without requiring in ordi-s nary cases the use of gaskets.

men hers 7 to slightly yie d and compensate for an 1 slight expansion or contraction in the The presence of the narrow opening!) ermitsth'e mturnlength of the pipe, and the increased thickness'of the outer edges'of the flanges fitting the grooved face of the-clamping-collars3 39-- prevents' the flanges from'beingpulledout of the collars by a longitudinal strain upon'the .pipe. j

My improved pipe-flange constructed-Sas follows: Asection'ofpipe 10 to beflaligedis \held betweenclamping-jaws '11 1,1, "with its" end 12 presented to a revolving faceplate- 13,

provided with diametrical ways -Mi -for jthe I slidin .blocks 15 and 16.- The block 15 is capab e of being moved radially onthe face" plate by the adjusting-screw 1-7 andhand wheel 18, and the block 16 is capable ofbing fastened in any desired position in theways 14 by means of bolts 19, passing through slots 20 and entering the face-plate. The"block 15 carries a stud 21, on which is mounted a roller 22, having a rounded eriphery 23, and the block 16 carries a stu 24, on which is loosely held a roller 25, capable of a slight longitudinal movement on the stud 24 and having a concave' groove 26. The block 16 is adjusted to'cause the periphery of the roller 25 to bear against the outer surface of :the pipe, and the roller 22 is inserted within the endof the pipe, and the block 15 is gradually drawn radially outward against the hmer surface of the pipe tQCttuSG'tlle same to be crowded intothe concave groove 26, s shown in Fig. 3, the end of the pipe opera d upon being heated and suiliciently plastic to allow it to be shaped between-the eoacting rolls 22 and 25, as shown in Fig. 3.

The shaping process performed by the rolls 22 and 25 expands-the end of the pipe and forms a longitudinal semispherical groove 27 When the groove '27 has been formed,

the roller 22 is moved radially i nvard to Tthe: center of the pipe, and the grgeve'd 'roller 25 shown in Fig. 4. lleld in the ways 14 of the .is moved radially outward into th'e'position '3 the pipe an necessitates a further adjustment of the roll roll 33fhaving. a concave face and having its means of a feeding-screw 36, which is rotated {gleswith the axis of the revolving face-plate; A q;

'acelate 13 is ablock 28, in which is journale a roller 29, having its face at right angles to the axis of the faceplate, The block 28 is provided with a projecting arm 30, parallel with the axis of the face-plate and provided with ways for anadjustable block 31, carryin a spindle 32, on which is jour'naled a axis at an oblique angle to the axis of the faceplate. The block 31 is adjustable in the arm 30 b means of an adjusting-screw 34 and ham -whecl 35; The block'3l is adjusted to; bring the edge of the roll 33 into close contact with the an leformed' by the periphery of' (l its expanded end, as shown in Fig. 3. The face-plate is then fed along in its bearings toward the end of the pipe by by the gears 37, shaft 38, and hand-wheel 39. Th e'feeding motion of the face-plate toward the end .of the pipe carries the roller 29 against the expanded end of the pipe. This movement of the face-plate in its bearings J3, which must be maintained in close contact with the angle formed by, the periphery of the pipe audits expanded end. Inthis was the completed flange, as shown in F ig. 4',

with the onuvardly-turned member'of the flange sharply bent against the concave side of the roll 53 and with the inturn memberv of to secure by Letters Patent, is

1, As an article of manufacture, a pipe ha vi n a. flange at its end, said flange being. turned outwardly at an obli ue angle to the axis of the pipe and returne inwardly-upon.

itself, with the inturned portion in a plane at right angles to the axis of the pipe.

2. As an article of manufacture, a pipe having at its end an outwardly,-projecting flange inte i'al with the pipe, and consisting of outward with an intervening space between said sections. v

3. As an article of manufacture, a pipe having at its end an external flange inte ral withthe pipe and comprising an inwar lyturned elastic section in a plane at right an gles to the axis of the pipe.

ly and inwardly turned sections,

4;; As an article of manufacture, a pipe having its end bent outward at an'oblique angle to the axis of the pipe, returned upon itself by an inward bend, with the return portion in a plane at right angles to the axis of the pipe to form a flange, leaving an inelosed annular space at the outer edge of said flange.

5. As an article of manufacture, a pipe having its and bent outwardlv at an angle to the axis 0 ":re pipe, returned upon itself by an inward bend to form a flange, and, with a restricted opening between the outward bend audzthe inturned-member of the flange.

6; Asan articlefof 'manufacture, a pipe having itsend bent outward at an oblique angle to:the *axis*of the-pipe, returned upon i tself' by anrinward bend :with the return por-' tion'in -agplane:atfi'ight angles to the axis of the pipe to;formj adlange;[and-with a re-* I andtheEintutnedendDf the-pipe? 'What I claim as my mvemion, and desire mamas 14th day of June, 1905.

Louis;IL'BRINKMXNI striated: openin :ljetwe'en'. the outward bend 

